@article{aler-et-al_aij2002,
  author       = {Aler, Ricardo and Borrajo, Daniel and Isasi, Pedro},
  journal      = {Artificial Intelligence},
  number       = {1-2},
  pages        = {29 -- 56},
  title        = {Using genetic programming to learn and improve control knowledge},
  volume       = 141,
  year         = 2002,
}